Glycine

• Formula: C₂H₅NO₂
• Molecular weight: 75.0666
• IUPAC Standard InChI: InChI=1S/C2H5NO2/c3-1-2(4)5/h1,3H2,(H,4,5) Copy

  
• IUPAC Standard InChIKey: DHMQDGOQFOQNFH-UHFFFAOYSA-N Copy
• CAS Registry Number: 56-40-6
• Chemical structure:
  This structure is also available as a 2d Mol file
• Species with the same structure:
  • alpha-glycine
• Other names: Acetic acid, amino-; Aciport; Aminoacetic acid; Aminoethanoic acid; Glicoamin; Glycocoll; Glycolixir; Glycosthene; Padil; NH2CH2COOH; Amitone; Glycine, non-medical; Hampshire glycine; Athenon; Gly; Glycine, free base; Gyn-hydralin; 2-Aminoacetic acid; NSC 25936; Corilin (Salt/Mix)
• Information on this page:
  • Phase change data
  • Ion clustering data
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • UV/Visible spectrum
• Data at other public NIST sites:
  • X-ray Photoelectron Spectroscopy Database, version 5.0
• Options:
  • Switch to calorie-based units

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• NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)

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Phase change data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos

Enthalpy of sublimation

Ion clustering data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Robert C. Dunbar

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

 +  = ( • )

By formula: K⁺ + C₂H₅NO₂ = (K⁺ • C₂H₅NO₂)

 +  = ( • )

By formula: Na⁺ + C₂H₅NO₂ = (Na⁺ • C₂H₅NO₂)

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Ngauv, Sabbah, et al., 1977
Ngauv, S.N.; Sabbah, R.; Laffitte, M., Thermodynamique de composes azotes. III. Etude thermochimique de la glycine et de la l-α-alanine, Thermochim. Acta, 1977, 20, 371-380. [all data]

Nguon Ngauv, Sabbah, et al., 1977
Nguon Ngauv, Song; Sabbah, Raphael; Laffitie, Marc, Thermodynamique de composes azotes III. Etude Thermochimique de la glycine et de la l-α-alanine, Thermochimica Acta, 1977, 20, 3, 371-380, https://doi.org/10.1016/0040-6031(77)85091-0 . [all data]

de Kruif, Voogd, et al., 1979
de Kruif, C.G.; Voogd, J.; Offringa, J.C.A., Enthalpies of sublimation and vapour pressures of 14 amino acids and peptides, The Journal of Chemical Thermodynamics, 1979, 11, 7, 651-656, https://doi.org/10.1016/0021-9614(79)90030-2 . [all data]

Svec and Clyde, 1965
Svec, H.J.; Clyde, D.D., Vapor pressures of some α-amino acids, J. Chem. Eng. Data, 1965, 10, 151. [all data]

Svec and Clyde, 1965, 2
Svec, H.J.; Clyde, D.D., Vapor Pressures of Some α-Amino Acids., J. Chem. Eng. Data, 1965, 10, 2, 151-152, https://doi.org/10.1021/je60025a024 . [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press Inc., London, 1970, 643. [all data]

Clyde and Svec, 1964
Clyde, D.D.; Svec, H., , U. S. Atomic Energy Comm. IS-790, 1964, 1. [all data]

Chiarelli and Gross, 1989
Chiarelli, M. Paul.; Gross, Michael L., Amino acid and tripeptide mixture analysis by laser desorption Fourier-transform mass spectrometry, Anal. Chem., 1989, 61, 17, 1895-1900, https://doi.org/10.1021/ac00192a023 . [all data]

Takagi, Chihara, et al., 1959
Takagi, Sadao; Chihara, Hideaki; Seki, Syûzô, Vapor Pressure of Molecular Crystals. XIII. Vapor Pressure of α-Glycine Crystal. The Energy of Proton Transfer, Bull. Chem. Soc. Jpn., 1959, 32, 1, 84-88, https://doi.org/10.1246/bcsj.32.84 . [all data]

Klassen, Anderson, et al., 1996
Klassen, J.S.; Anderson, S.G.; Blades, A.T.; Kebarle, P., Reaction Enthalpies for M+L = M+ + L, Where M+ = Na+ and K+ and L = Acetamide, N-Methylacetamide, N,N-Dimethylacetamide, Glycine, and Glycylglycine, from Determinations of the Collision-Induced Dissociation Thresholds, J. Phys. Chem., 1996, 100, 33, 14218, https://doi.org/10.1021/jp9608382 . [all data]

Kish, Ohanessian, et al., 2003
Kish, M.M.; Ohanessian, G.; Wesdemiotis, C., The Na+ affinities of a-amino acids: side-chain substituent effects, Int. J. Mass Spectrom., 2003, 227, 3, 509, https://doi.org/10.1016/S1387-3806(03)00082-4 . [all data]

Moision and Armentrout, 2002
Moision, R.M.; Armentrout, P.B., Experimental and Theoretical Dissection of Sodium Cation/Glycine Interactions, J. Phys. Chem A, 2002, 106, 43, 10350, https://doi.org/10.1021/jp0216373 . [all data]

Notes

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• Symbols used in this document:
  

  ΔrH°	Enthalpy of reaction at standard conditions
  ΔsubH	Enthalpy of sublimation
  ΔsubH°	Enthalpy of sublimation at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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